CDR 2011Windward Community College

Todd & Model Rocket

Project

Rocket:Leo Hano

Payload:Hula-hoop

Characteristics • GPSFlight in nose cone• Variable Drag Configuration (VDR)• Four fin design• Avionics

• Featherweight Raven-2• PerfectFlight MAWD

• Dual Deployment

• Motor: L1300R• Thrust/Weight: 6.49 • Total Impulse: 4567.0 N• Casing: RMS 98/5120• Average Thrust: 1300.0

N• Peak Thrust: 1,552.5 N• Burn Time: 3.5

Motor Selection

1. Boost Phase2. Coast Phase3. Apogee

Drogue Deployed4. Rapid Decent Phase

82 ft/sec5. Main Decent Phase

22 ft/sec

Flight Profile

ParachutesMain Chute

• 144in (12 feet)• Decent Rate: 22

feet per second

Drogue Chute• 42in (3 and 1 half

feet)• Decent Rate: 82

feet per second

Overview

Recovery Avionics Block Diagram

Testing• Model Rocket Launches: On going

• Third Saturday of every month• Duel Deployment Avionics Test: February 26,

2011• Full Scale Low Power Launch (FSLP): March 13,

2011• FSLP Rain Date: March 20, 2011• K560• Altitude:1,930 feet• Max Speed: 299 feet/sec• Max Acceleration: 407 feet/sec/sec• Estimated Flight Duration: 3 minutes

Payload Parts List - Hula-hoop 1• BS2pe Micro Controller • 12-bit ADC• Temperature sensor

BS2pe A/D

Temp Sensor

Hula-hoop 1 Block Diagram

Payload Parts List – Hula-hoop 2• BS2p Micro Controller • EEPROM• 24-bit ADC• Temperature sensor• coil

• 12-bit ADC• Temperature sensor

• 3-axis accelerometer (for comparison)• Consists of one coil

Accelerometer

A/D #1

BS2p

EEPROM

Coil # 1Temp Sensor # 1 I C Bus2

SPI Data Bus

A/D #2 Temp Sensor # 2

Hula-hoop 2 Design

Payload Parts List – Hula-hoop 3• BS2p Micro Controller • Eight EEPROM• Three 24-bit ADC• Temperature sensor• coil

• 12-bit ADC• Temperature sensor

• 3-axis accelerometer (for comparison)• Consists of three perpendicular coils around a

non-magnetic sphere

Accelerometer

A/D #1

A/D #2

BS2p

EEPROM

Coil # 1

Coil #2

Coil #3

Temp Sensor # 1

Temp Sensor # 2 I C Bus2

SPI Data Bus

Preliminary Design For Hula-hoop 3

A/D #3

A/D #4

Temp Sensor # 3

Temp Sensor # 4

Feb

March

April

USLI

12 - 1813 1919

FSLPMode

l Launch

20

Model La

unch/

Avioni

c Com

plete

FSLP R

ain Date

Booster

Complete

Avion

ics

Test

265

Time Line

5

Rocke

t Com

plete

Rocket Construction Time Line• Begin Construction: February 1• Booster Complete: February 5• Avionics Complete: February 19• Dual Deployment Avionics Test: February 26• Rocket Construction Complete: March 5

Outreach

Education Outreach Endeavors • Community Outreach• Boys/girls Club etc.• Model Rocket Launches

• School Involvement• Payload Projects• ARCHES• TARC

• Military Involvement• Reach Across the Pacific• KMCAS

• O’Lelo

Mahalo

Please don’t hate us because we live in Hawaii